20th century Flat plate industrial railway mirror

This is a great piece of industrial art. Originally used on a railway to see around blind corners and would have had convex glass in it. It has at some point in its life had this replaced with a flat plate mirror which takes nothing away from the look of the piece and does make it more practical. The frame is a very heavy metal with original worn paint. Please make sure the wall you hang this on is sturdy.

Diameter 145cm